When you’re posting a profile photo on LinkedIn, Facebook, Match.com and other social media sites, which shot is likely to make the best impression in terms of “likeability,” “competence” and “influence”? One in which you’re smiling and showing some teeth, for starters, according to PhotoFeeler.com, a crowdsourcing website that helps people evaluate their head shots. If something about your teeth is holding you back from parting your lips when you smile for the camera, here are some tried-and-true options for doing something about it!

Picture-Perfect Color, Shape and Alignment

Improving the color of your teeth may be as easy as getting regular professional cleanings, which are necessary for removal of calculus — dark-yellow hardened buildup of bacterial plaque — and can polish out superficial staining caused by certain beverages and foods.

Actually changing the color of your teeth entails whitening/bleaching. Professional whitening achieves the fastest results because it uses the highest concentration of peroxide solution and custom-fitted trays. In-home whitening kits take longer to work but are less expensive. Results last anywhere from six months to two years.

For permanent whitening results, consider veneers or crowns. In addition to changing tooth color, they can also alter tooth shape, hide wear and even minimize gaps between teeth. Veneers are affixed to the front of teeth, while crowns cover the entire tooth.

Teeth that are chipped, cracked or have noticeable areas of decay, can be restored with bonding, in which a composite resin material is applied that is colored to match your natural teeth.

You can straighten misaligned teeth and no one even has to know you’re doing it. Barely visible and entirely invisible orthodontic appliances include clear braces, lingual braces (attached to the tongue-facing side of teeth) and clear aligners, which are removable for tooth brushing/flossing, cleaning the appliance, eating, and special occasions.